At the moment I am considering a 'difficult', highly-oscillatory integral in Mathematica. It calculates the integral without any complaints. However, I am also trying out a numerical method with which ...

I have noted that the same function with the same settings gives me different results in Mathematica version 9 and 10. This involves integrating numerically interpolating functions and so on.
Here a ...

How should I find out what the default value of Accuracy and Precision is in the NDSolve?
I have a pde that when I asked it to solve for me the equation with a special Accuracy and precision it gave ...

I am trying to check if the result is enough accurate to use. I need an accuracy of 10^-6 from some numerical method. Something like root finding algorithm. But how do I check that in mathematica? I ...

I have a longer analytic expression in several variables containing special functions and others. Does Mathematica bring tools - or are there any packages - to examine the stability when I evaluate ...

I have a matrix $a(\kappa)$ from which I am trying to determine $\kappa$ by using the equation $det(a(\kappa)) = 0$. The matrices I deal with are on the order of 100 X 100 to 500 X 500. Originally I ...

Background: I am trying to compute the Lyapunov exponent for the logistic map given by
\begin{equation*}
x_{n+1}=F(x_n)=ax_n(1-x_n)
\end{equation*}
The formula for the Lyapunov exponent for a given ...

An earlier post was migrated to Physics.SE and we determined that if this converged, we would have a constant close to the mass of the proton in kilograms. This constant is constructed by summing the ...

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